What are the different types of murmurs?

All murmurs are analyzed for pitch, loudness, and duration. They are also graded according to their intensity (on a scale of one to six, with one being very faint and six being very loud).

Types of murmurs include:

systolic murmur - occurs during a heart muscle contraction. Systolic murmurs are divided into ejection murmurs (due to blood flow through a narrowed vessel or irregular valve) and regurgitant murmurs.

diastolic murmur - occurs during heart muscle relaxation between beats. Diastolic murmurs are due to a narrowing (stenosis) of the mitral or tricuspid valves, or regurgitation of the aortic or pulmonary valves.